Perpetual calendar



fApgil 29, 1930. R. B. LEE Y 1,756,600r

PERPETUAL CALENDA Filed Nov, 16, 1929 INVENTOR. fox@ E5 BY l @@@TORNEY Patented Apr. 29, 1930 UNITE STATES PATENT @FTE ROYAL B. LEE, OF SAN DIEGO, CALIFORNIA PERPETUAL CALENDAR Application filed November 16, 1929. Serial No. 407,761.

'My invention rela-tes to perpetual calene fragmentary, sectional view through 5 5 da'rs, and the objects of my invention are: of Fig. 1. first, to provide acalendar of this class in Similar characters of reference refer to which the proper weekly calendar for any similar parts and portions throughout the month or" any year marked thereon may be several views of the drawings. 55

readily obtained with a minimum amount of Casing` l, year-indicating disk 2, knob 8, manipulating; second, to provide a calendar month-indicating disk 4, knob Y 5, segment of this class in which when once set, the only member 6, knob 7, and transparent material visible characters thereon pertain solely to 8 constitute the principal parts and portions 10 the year, month and weekly calendar desired, of my perpetual calendar. 60 all other characters being covered, thereby The calendar is enclosed by a casing l, avoiding confusion; third, to provide a calenwhich comprises two rectangularsshaped dar of this class in which the setting of the front and back members separated from each desired year and month automatically indiother and arranged in parallel disposed cates the particular weekly calendar to be planes by relatively thin edge walls. Mount- 65 used; tourt-h, to provide a calendar oi this ed Within the casing l, adjacent the rear wall, class in which all the possible weekly calenand to one end, is a year-indicating disk 2, dars are printed on a single card which is which is made as large as possible. The inshiiitable in register with a window, exposing dicating disk 2 is supported relative to the 2o only the desired portion of the calendar; iifth, frontside of the casing' l by the shank por- 70 to provide a calendar of this class in which tion 3a of a knob 3. The shank of the knob calculation is eliminated or reduced to a mini- 3 is firmly secured to the disk so that it may mum sixth, to provide a calendar of this class be readily revolved. which is particularly applicable for use as an Printed adjacent to the periphery of the advertising novelty; seventh, to provide a disk 2 are a plurality of characters 2a repre- 75 calendar of this class in which all moving senting the various years for which the calenpm-ts are Well protected from Wear; and dar is adapted to register. Only thelast two eighth, to provide on the whole, anovelly concharacters ot each year need be printed on structed perpetual calendar which is eXtremethe dSl 2.

ly simple of construction proportional to its `The forward sideof the. casing l is proso functions, durable, eiiicient in its action, and vided near its upper margin with an openwhich will not readily deteriorate or get out lng l therein, which registers with the char- Of Order. acters 2a, but only registers with the cha-r- With these and other objects in view as will LCJQS O 9: Single yeyl at 2L time, aS ShOWIl appeal' he'ejjaftel" my nvgnton Consists of lll aCeIli'i l'ihlS Opening, all the lefil- S5 certain novel features of construction, com- SCl-e thereof: are Pmted tf1@ Charactefs bnaton and arrangement of ,Darts and POI. 19 which when read when the exposed chartions 3S Wm be hereinafter described in Q actors 2a complete the year date, such as the r 1 i 77 4 tail and particularly set forth in the append- 379g {929 Shown in ng' d th 1 b f D0 ed claims, reference being had to the accom- Stv/een he Chalacjls an e m O the disk 2 rrre arovided a luralit of radialpanying drawings and to the characters of l l p y ,E t, h. l D t f H11-S ly extending sets of numerical index char- ,A j A leelmc lemon W 1m Olm a lai O acters 2b. lhere are twelve of these charappicntlon ln which: acters in each set, corresponding-to the twelve Flgu'@ l 1S a from' elevatlonal View of ,my months of the year. Thesecharacters are 95 perpetual calendar; Fig. 2 is a sectional view adapted to be exposed 10V rectangular @en theeof though 2 2 0f Fgl; Fg- 3 is an ing lb formed inthe iront side of the casing elevational view ot the year-indicating disk; 1 The Opening 1b preferably extends hol-- Fig 4 S all @leVtODl View Of ill@ m011tl1 zontally towards the further end ot the casindicating disk; and Fig. 5 is an enlarged, ing from the knob 3. The characters 2b are 100 slots 4, one for each month of the year.

arranged from 1 to 7, inclusive, and represent the calendar segments to be described hereinafter.

Offset horizontally from, and overlapping the disk 2, is a month-indicating disk 4, which is also annular and approximately the same size as the disk 2. The disk 4 is also supported relative to the front side of the casing 1 in a manner similaito the disk 2 by mea-ns of a knob 5. Printed adjacent the periphery of the disk 4, as indicated by 4a, are the words January, February, March, etc., representing the twelve months of the year. Below each month naine 4, are the words 30 days or 31 days, as indicated by 41. For February, the characters read 28 days L. Y. 29.

The month naines 41" and the day-indicating characters 4b therefor are adapted to eating characters 4b therefore are adapted to provided in the casing l vertically above the knob 5, and in approxin'iately horizontally disposed relation to the opening la.

The disk 4 is provided with a plurality of The disk 4 overlaps the characters 2b of the disk 2. The slots 4c are so arranged that for each month name exposed in the opening 1C, there will be a slot 4c exposing just one character of the said index characters 2b, which is registering with the opening 1b, as shown in Fig. l.

Thus, for November, only the character 6 is exposed, the others being closed by Y the opaque portion of the disk 4. For J anuary, the slot 4c is adjacent the left-hand end, and for December, the slot is opposite the right-hand end of the character sets 2b. The openings 1c and 1d, being approximately ninety degrees from each other, the slot 4c for January is on the same radius line as the month character of October, as shown in Fig. 4.

Mounted so as to overlap the disk 4, on

H the opposite side thereof from the disk 2, is

a Weekly calendar member 6. This member is in the form of a circular segment and is pivotally mounted relative to the front side of the casing 1 by means of a knob 7 positioned adjacent the lower end of the casing, as shown in Fig. 1.

Arranged near the upper end of the segment member 6 are six arcuately disposed lines of numerals divided into thirteen columns. The first line reads from l to 7, the second line from 2 to 14, the third line from 9 to 21, the fourth line from 16 to 28, the iifth line, 23 to 31, and the sixth line, 30 to 31. The numeral l in the first line begins the seventh column from the left, leaving six blank spaces in the first line. The numeral 31 of the lifth line ends in the fifth space from the right-hand side, leaving four empty spaces in this line. Only two characters 30 and 31 are in the last or sixth line, leaving five spaces on the righthand side of character 31.

Formed in the casing 1 is an arcuate opening 1d adapted to expose all six of the lines, but only seven of the vertical columns. The segment member 6 is adapted to be shifted so that any seven of the columns and numerals thereon are exposed by the opening 1d. Printed above the opening 1d, so that they are opposite the seven columns of figures registering therewith, are characters representing, in a manner similar to the conventional Weekly calendar, the various days of the week.

Below the opening 1d, is a small opening 1e adapted to expose a singlev character. lJrinted upon the segment member 6 so as to register one at a time With the opening 1? are seven index characters, arranged from 1 to 7 inclusive. lVhen the character 6 is opposite the opening 1e, the numeral 1 is in the second exposed column from the right-hand side, indicating that that particular month begins on Friday. If the numeral l only in the upper line were exposed the segment member 6 would be at its extreme righthand side.

rlhe operation of my perpetual calendar is as follows:

The disk 2 is rotated until the characters representing the desired year are exposed by the opening 1a. The disk 4 is then rotated until the desired month is exposed in the opening 1l. This exposes one index character of one of the character sets 2". The character exposed indicates the character that should be exposed by the opening 1e in order to have the proper calendar in register for the desired year and month.

Als shown in Fig. 1, the year 1929 and the month November is exposed, and the numeral 6 is exposed by the slots 1b and 4C. The weekly calendar segment 6 is posi- 'tioned so that the numeral 6 is exposed by the opening 1e, thereby causing a portion of the characters 6a on the segment 6 to register with the opening ld and form a complete weekly calendar for the month of November.

By merely rotating the disks back or forth to the desiredv month and'year, a single number is exposed by the slots 1b and 4, and then by setting the segment 6 so as to correspond to this number, the proper Weekly calendar is readily set.

The leap year can readily be indicated by coloring the background of the numerals 1d corresponding to the leap yea-r date, or by coloring the background of the numeral sets 2b corresponding to the leap year, or both, as indicated by the crosshatched lines 2c representing colors. If desired, however, the numerals themselves may be printed in contrasting colors rather than tinting the background;

The various openings 1, 1b, 1c and 1d are covered by a thin sheet of transparent material, such as celluloid 8, as shown in Figs. 2 and 5.

It is obvious from the construction as illustrated in the drawings and described in the foregoing speciication that there is provided a perpetual calendar as aimed at and set forth in the objects of the invention, and though I have shown and described a particular construction, combination and arrangement of parts and portions, I do not Wish to be limited to this particular construction, combination and arrangement, but desire to include in the scope of my invention the construction, combination and arrangement substantially as set forth in the appended claims.

Having thus described my invention, What I claim as new and desire to secure by Letters Patent is:

l. In a perpetual calendar, a casing, a rotatable disk mounted therein, said disk provided vvith characters representing the years and sets of index characters corresponding to said years, a second disk provided with characters representing months, and a slot 'for each month arranged to uncover a certain index character, said casing provided With openings therein adapted to expose at one time, characters representing` a single year date, characters representing a single month of a year, and an index character exposed by the slot in said second disk, and a Weekly calendar member arranged to be set according to the said exposed index character.

2. In a perpetual calendar, a casing, a rotatable disk mounted therein, said disk provided With characters representing the years, and sets of index characters corresponding to said vears, said casing provided With openings therein arranged to expose a certain year date and a corresponding set of index characters, a second disk rotatably mounted Within said casing, said second disk provided with Words indicative of the various months or the year, an opening in said casing for exposing Words indicative of a certain month, said second disk arranged to conceal all but one of the index characters exposed by the second mentioned opening in said casing, and a Weekly calendar mounted in said casing arranged to be shifted so as to expose a Weekly calendar corresponding to the index charactcr revealed by said second disk.

3. In a perpetual calender, a casing, a rotatable disk mounted therein, said disk provided with characters representing certain years and sets oi index characters corresponding to the various months of said years, said casing provided with a iirst opening exposing a certain year date, and a second opening exposing a single set of index characters, a second disk mounted in said casing and extending into overlapping relation With said lirst disk between said set of characters exposed by said second opening, said second disk provided With the names of the various months of the year printed thereon, said casing provided With a third opening exposing one month name at a time, said second disk provided With a plurality of slots, one slot corresponding to each month arranged to co-act With said second opening and expose a single one or" said set of characters, and a shiitable Weekly calendar arranged to be set so as to correspond to the index character exposed by said second opening and a slot in said disk. i

l. In a perpetual calendar, a casing provided With a plurality of openings in its for- Ward side, a pair of disks rotatably mounted therein, the one disk having printed thereon year dates and sets of index characters corresponding to said year dates, the other of said disks having the months of the year printed thereon and slots cut therein corresponding toeach month of the year, each of said slots arranged to expose a certain character of any set of characters on said iirst disk, and a composite Weekly calendar member having printed thereon the various arrangements of days in a month, and index characters corresponding to the index characters on said iirst disk, said openings in said casing arranged to expose at one time a single year date, a single month name, a single index character on said rst disk, a corresponding index character on said Weekly calendar member, and a certain section of said calendar corresponding to the year and month exposed.

5. In a perpetual calendar, a pair of disks, the one having year dates formed thereon and the other having the months of a year formed thereon, index means, said disks arranged to co-act so as to reveal said index means, and a composite Weekly calendar means arranged to be set according to saidv index means so as to reveal the proper Weekly calendar iior a given year date and month.

6. In a perpetual calendar, a pair of disks, the one having year dates formed thereon and the other having the months of a year formed thereon, index means, said disks arranged to oo-act so as to reveal said index means, a composite Weekly calender means arranged to be set according to said index means so as to reveal the proper Weekly calendar for a given year date and month, and a casing for said disks, and means having openings therein arranged to expose only a given year date, al given month date, and the proper index means and the proper Weekly calendar for said year and month dates.

In testimony whereof, I have hereunto set my hand at San Diego, California,this 7th day of November, 1929.

ROYAL B. LEE. 

